v0.28.0

## What's Changed
* feat(commands): add /prompt-suggest slash command by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/17264
* feat(cli): align hooks enable/disable with skills and improve completion by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/16822
* docs: add CLI reference documentation by @leochiu-a in https://github.com/google-gemini/gemini-cli/pull/17504
* chore(release): bump version to 0.28.0-nightly.20260128.adc8e11bb by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/17725
* feat(skills): final stable promotion cleanup by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17726
* test(core): mock fetch in OAuth transport fallback tests by @jw409 in https://github.com/google-gemini/gemini-cli/pull/17059
* feat(cli): include auth method in /bug by @erikus in https://github.com/google-gemini/gemini-cli/pull/17569
* Add a email privacy note to bug_report template by @nemyung in https://github.com/google-gemini/gemini-cli/pull/17474
* Rewind documentation by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/17446
* fix: verify audio/video MIME types with content check by @maru0804 in https://github.com/google-gemini/gemini-cli/pull/16907
* feat(core): add support for positron ide (#15045) by @kapsner in https://github.com/google-gemini/gemini-cli/pull/15047
* /oncall dedup - wrap texts to nextlines by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17782
* fix(admin): rename advanced features admin setting by @skeshive in https://github.com/google-gemini/gemini-cli/pull/17786
* [extension config] Make breaking optional value non-optional by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/17785
* Fix docs-writer skill issues by @g-samroberts in https://github.com/google-gemini/gemini-cli/pull/17734
* fix(core): suppress duplicate hook failure warnings during streaming by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17727
* test: add more tests for AskUser by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/17720
* feat(cli): enable activity logging for non-interactive mode and evals by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/17703
* feat(core): add support for custom deny messages in policy rules by @allenhutchison in https://github.com/google-gemini/gemini-cli/pull/17427
* Fix unintended credential exposure to MCP Servers by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/17311
* feat(extensions): add support for custom themes in extensions by @spencer426 in https://github.com/google-gemini/gemini-cli/pull/17327
* fix: persist and restore workspace directories on session resume by @korade-krushna in https://github.com/google-gemini/gemini-cli/pull/17454
* Update release notes pages for 0.26.0 and 0.27.0-preview. by @g-samroberts in https://github.com/google-gemini/gemini-cli/pull/17744
* feat(ux): update cell border color and created test file for table rendering by @devr0306 in https://github.com/google-gemini/gemini-cli/pull/17798
* Change height for the ToolConfirmationQueue. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/17799
* feat(cli): add user identity info to stats command by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17612
* fix(ux): fixed off-by-some wrapping caused by fixed-width characters by @devr0306 in https://github.com/google-gemini/gemini-cli/pull/17816
* feat(cli): update undo/redo keybindings to Cmd+Z/Alt+Z and Shift+Cmd+Z/Shift+Alt+Z by @scidomino in https://github.com/google-gemini/gemini-cli/pull/17800
* fix(evals): use absolute path for activity log directory by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/17830
* test: add integration test to verify stdout/stderr routing by @ved015 in https://github.com/google-gemini/gemini-cli/pull/17280
* fix(cli): list installed extensions when update target missing by @tt-a1i in https://github.com/google-gemini/gemini-cli/pull/17082
* fix(cli): handle PAT tokens and credentials in git remote URL parsing by @afarber in https://github.com/google-gemini/gemini-cli/pull/14650
* fix(core): use returnDisplay for error result display by @Nubebuster in https://github.com/google-gemini/gemini-cli/pull/14994
* Fix detection of bun as package manager by @Randomblock1 in https://github.com/google-gemini/gemini-cli/pull/17462
* feat(cli): show hooksConfig.enabled in settings dialog by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17810
* feat(cli): Display user identity (auth, email, tier) on startup by @yunaseoul in https://github.com/google-gemini/gemini-cli/pull/17591
* fix: prevent ghost border for AskUserDialog by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/17788
* docs: mark A2A subagents as experimental in subagents.md by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/17863
* Resolve error thrown for sensitive values by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/17826
* fix(admin): Rename secureModeEnabled to strictModeDisabled by @skeshive in https://github.com/google-gemini/gemini-cli/pull/17789
* feat(ux): update truncate dots to be shorter in tables by @devr0306 in https://github.com/google-gemini/gemini-cli/pull/17825
* fix(core): resolve DEP0040 punycode deprecation via patch-package by @ATHARVA262005 in https://github.com/google-gemini/gemini-cli/pull/17692
* feat(plan): create generic Checklist component and refactor Todo by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/17741
* Cleanup post delegate_to_agent removal by @gundermanc in https://github.com/google-gemini/gemini-cli/pull/17875
* fix(core): use GIT_CONFIG_GLOBAL to isolate shadow git repo configuration - Fixes #17877 by @cocosheng-g in https://github.com/google-gemini/gemini-cli/pull/17803
* Disable mouse tracking e2e by @alisa-alisa in https://github.com/google-gemini/gemini-cli/pull/17880
* fix(cli): use correct setting key for Cloud Shell auth by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17884
* chore: revert IDE specific ASCII logo by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/17887
* Revert "fix(core): resolve DEP0040 punycode deprecation via patch-package" by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17898
* Refactoring of disabling of mouse tracking in e2e tests by @alisa-alisa in https://github.com/google-gemini/gemini-cli/pull/17902
* feat(core): Add GOOGLE_GENAI_API_VERSION environment variable support by @deyim in https://github.com/google-gemini/gemini-cli/pull/16177
* feat(core): Isolate and cleanup truncated tool outputs by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/17594
* Create skills page, update commands, refine docs by @g-samroberts in https://github.com/google-gemini/gemini-cli/pull/17842
* feat: preserve EOL in files by @Thomas-Shephard in https://github.com/google-gemini/gemini-cli/pull/16087
* Fix HalfLinePaddedBox in screenreader mode. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/17914
* bug(ux) vim mode fixes. Start in insert mode. Fix bug blocking F12 and ctrl-X in vim mode. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/17938
* feat(core): implement interactive and non-interactive consent for OAuth by @ehedlund in https://github.com/google-gemini/gemini-cli/pull/17699
* perf(core): optimize token calculation and add support for multimodal tool responses by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17835
* refactor(hooks): remove legacy tools.enableHooks setting by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17867
* feat(ci): add npx smoke test to verify installability by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/17927
* feat(core): implement dynamic policy registration for subagents by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17838
* feat: Implement background shell commands  by @galz10 in https://github.com/google-gemini/gemini-cli/pull/14849
* feat(admin): provide actionable error messages for disabled features by @skeshive in https://github.com/google-gemini/gemini-cli/pull/17815
* Fix bugs where Rewind and Resume showed Ugly and 100X too verbose content. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/17940
* Fix broken link in docs by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/17959
* feat(plan): reuse standard tool confirmation for `AskUser` tool by @jerop in https://github.com/google-gemini/gemini-cli/pull/17864
* feat(core): enable overriding CODE_ASSIST_API_VERSION with env var by @lottielin in https://github.com/google-gemini/gemini-cli/pull/17942
* run npx pointing to the specific commit SHA by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17970
* Add allowedExtensions setting  by @kevinjwang1 in https://github.com/google-gemini/gemini-cli/pull/17695
* feat(plan): refactor `ToolConfirmationPayload` to union type by @jerop in https://github.com/google-gemini/gemini-cli/pull/17980
* lower the default max retries to reduce contention by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/17975
* fix(core): ensure YOLO mode auto-approves complex shell commands when parsing fails by @abhipatel12 in https://github.com/google-gemini/gemini-cli/pull/17920
* Fix broken link. by @g-samroberts in https://github.com/google-gemini/gemini-cli/pull/17972
* Support ctrl-C and Ctrl-D correctly Refactor so InputPrompt has priority over AppContainer for input handling. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/17993
* Fix truncation for AskQuestion by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/18001
* fix(workflow): update maintainer check logic to be inclusive and case-insensitive by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/18009
* Fix Esc cancel during streaming by @LyalinDotCom in https://github.com/google-gemini/gemini-cli/pull/18039
* feat(acp): add session resume support by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/18043
* fix(ci): prevent stale PR closer from incorrectly closing new PRs by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/18069
* chore: delete autoAccept setting unused in production by @victorvianna in https://github.com/google-gemini/gemini-cli/pull/17862
* feat(plan): use `placeholder` for choice question "Other" option by @jerop in https://github.com/google-gemini/gemini-cli/pull/18101
* docs: update clearContext to hookSpecificOutput by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/18024
* docs-writer skill: Update docs writer skill by @jkcinouye in https://github.com/google-gemini/gemini-cli/pull/17928
* Sehoon/oncall filter by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/18105
* feat(core): add setting to disable loop detection by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/18008
* Docs: Revise docs/index.md by @jkcinouye in https://github.com/google-gemini/gemini-cli/pull/17879
* Fix up/down arrow regression and add test. by @jacob314 in https://github.com/google-gemini/gemini-cli/pull/18108
* fix(ui): prevent content leak in `MaxSizedBox` bottom overflow by @jerop in https://github.com/google-gemini/gemini-cli/pull/17991
* refactor: migrate checks.ts utility to core and deduplicate by @jerop in https://github.com/google-gemini/gemini-cli/pull/18139
* feat(core): implement tool name aliasing for backward compatibility by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/17974
* docs: fix help-wanted label spelling by @pavan-sh in https://github.com/google-gemini/gemini-cli/pull/18114
* feat(cli): implement automatic theme switching based on terminal background by @Abhijit-2592 in https://github.com/google-gemini/gemini-cli/pull/17976
* fix(ide): no-op refactoring that moves the connection logic to helper functions by @skeshive in https://github.com/google-gemini/gemini-cli/pull/18118
* feat: update review-frontend-and-fix slash command to review-and-fix by @galz10 in https://github.com/google-gemini/gemini-cli/pull/18146
* fix: improve `Ctrl+R` reverse search by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/18075
* feat(plan):  handle inconsistency in schedulers by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/17813
* feat(plan): add core logic and `exit_plan_mode` tool definition by @jerop in https://github.com/google-gemini/gemini-cli/pull/18110
* feat(core): rename search_file_content tool to grep_search and add legacy alias by @SandyTao520 in https://github.com/google-gemini/gemini-cli/pull/18003
* fix(core): prioritize detailed error messages for code assist setup by @gsquared94 in https://github.com/google-gemini/gemini-cli/pull/17852
* fix(cli): resolve environment loading and auth validation issues in ACP mode by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/18025
* feat(core): add .agents/skills directory alias for skill discovery by @NTaylorMullen in https://github.com/google-gemini/gemini-cli/pull/18151
* chore(core): reassign telemetry keys to avoid server conflict by @mattKorwel in https://github.com/google-gemini/gemini-cli/pull/18161
* Add link to rewind doc in commands.md by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/17961
* feat(core): add draft-2020-12 JSON Schema support with lenient fallback by @afarber in https://github.com/google-gemini/gemini-cli/pull/15060
* refactor(core): robust trimPreservingTrailingNewline and regression test by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/18196
* Remove MCP servers on extension uninstall by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/18121
* refactor: localize ACP error parsing logic to cli package by @bdmorgan in https://github.com/google-gemini/gemini-cli/pull/18193
* feat(core): Add A2A auth config types by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/18205
* Set default max attempts to 3 and use the common variable by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/18209
* feat(plan): add `exit_plan_mode` ui and prompt by @jerop in https://github.com/google-gemini/gemini-cli/pull/18162
* fix(test): improve test isolation and enable subagent evaluations by @cocosheng-g in https://github.com/google-gemini/gemini-cli/pull/18138
* feat(plan): use custom deny messages in plan mode policies by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/18195
* Match on extension ID when stopping extensions by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/18218
* fix(core): Respect user's `.gitignore` preference by @xyrolle in https://github.com/google-gemini/gemini-cli/pull/15482
* docs: document GEMINI_CLI_HOME environment variable by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/18219
* chore(core): explicitly state plan storage path in prompt by @jerop in https://github.com/google-gemini/gemini-cli/pull/18222
* A2a admin setting by @DavidAPierce in https://github.com/google-gemini/gemini-cli/pull/17868
* feat(a2a): Add pluggable auth provider infrastructure by @adamfweidman in https://github.com/google-gemini/gemini-cli/pull/17934
* Fix handling of empty settings by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/18131
* Reload skills when extensions change by @chrstnb in https://github.com/google-gemini/gemini-cli/pull/18225
* feat: Add markdown rendering to `ask_user` tool by @jackwotherspoon in https://github.com/google-gemini/gemini-cli/pull/18211
* Add telemetry to rewind by @Adib234 in https://github.com/google-gemini/gemini-cli/pull/18122
* feat(admin): add support for MCP configuration via admin controls (pt1) by @skeshive in https://github.com/google-gemini/gemini-cli/pull/18223
* feat(core): require user consent before MCP server OAuth by @ehedlund in https://github.com/google-gemini/gemini-cli/pull/18132
* fix(sandbox): propagate GOOGLE_GEMINI_BASE_URL&GOOGLE_VERTEX_BASE_URL env vars by @skeshive in https://github.com/google-gemini/gemini-cli/pull/18231
* feat(ui): move user identity display to header by @sehoon38 in https://github.com/google-gemini/gemini-cli/pull/18216
* fix: enforce folder trust for workspace settings, skills, and context by @galz10 in https://github.com/google-gemini/gemini-cli/pull/17596
* fix(patch): cherry-pick aba8c5f to release/v0.28.0-preview.0-pr-17806 to patch version v0.28.0-preview.0 and create version 0.28.0-preview.1 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/18307
* fix(patch): cherry-pick 9ca7300 to release/v0.28.0-preview.1-pr-18395 to patch version v0.28.0-preview.1 and create version 0.28.0-preview.2 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/18400
* fix(patch): cherry-pick d86b1f7 to release/v0.28.0-preview.2-pr-18447 to patch version v0.28.0-preview.2 and create version 0.28.0-preview.3 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/18450
* fix(patch): cherry-pick 1cae5ab to release/v0.28.0-preview.3-pr-18376 to patch version v0.28.0-preview.3 and create version 0.28.0-preview.4 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/18463
* fix(patch): cherry-pick ec5836c to release/v0.28.0-preview.4-pr-18343 to patch version v0.28.0-preview.4 and create version 0.28.0-preview.5 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/18472
* fix(patch): cherry-pick 81ccd80 to release/v0.28.0-preview.5-pr-18406 to patch version v0.28.0-preview.5 and create version 0.28.0-preview.6 by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/18651
* fix(patch): cherry-pick bce1cae to release/v0.28.0-preview.6-pr-18407 [CONFLICTS] by @gemini-cli-robot in https://github.com/google-gemini/gemini-cli/pull/18739

## New Contributors
* @leochiu-a made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17504
* @erikus made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17569
* @nemyung made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17474
* @Randomblock1 made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17462
* @ATHARVA262005 made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17692
* @deyim made their first contribution in https://github.com/google-gemini/gemini-cli/pull/16177
* @lottielin made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17942
* @victorvianna made their first contribution in https://github.com/google-gemini/gemini-cli/pull/17862
* @pavan-sh made their first contribution in https://github.com/google-gemini/gemini-cli/pull/18114

**Full Changelog**: https://github.com/google-gemini/gemini-cli/compare/v0.27.4...v0.28.0